Does lost update problem must have Read first?
Can Lost-Update problem occur in:
1] Conflict Serializable
2] Strict Recoverable
I'm totally confused about basic.
R2(X) R1(X) W1(X) C1 W2(X)
Does this ...
If a schedule follows the two-phase locking protocol, does every transaction have to follow 2PL, or is it the case that all locks must appear all unlocks in the whole schedule?
I am a little confused ...